updated readme

README.md

 # react-native-apple-healthkit
-A React Native bridge module for interacting with Apple HealthKit data. 
-
-####[HealthKit](https://developer.apple.com/healthkit/)
+A React Native bridge module for interacting with [Apple HealthKit] data. 
 ![Alt text](https://devimages.apple.com.edgekey.net/assets/elements/icons/healthkit/healthkit-64x64.png "Apple HealthKit")
 
 ## Getting started
@@ -15,3 +13,6 @@ A React Native bridge module for interacting with Apple HealthKit data.
 5. Click `RCTAppleHealthKit.xcodeproj` in the project navigator and go the `Build Settings` tab. Make sure 'All' is toggled on (instead of 'Basic'). In the `Search Paths` section, look for `Header Search Paths` and make sure it contains both `$(SRCROOT)/../../react-native/React` and `$(SRCROOT)/../../../React` - mark both as `recursive`.
 5. Compile and have fun
 
+
+
+[Apple HealthKit]: http://www.reddit.com
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